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0引言老年慢性支气管炎;是由于感染或非感染因素引起的气管-支气管黏膜及其周围组织的慢性非特异性炎症。其病理特点是支气管黏液腺增生、黏液分泌增加。临床上表现为连续2年以上,每年持续3个月以上的咳嗽、咳痰或气喘等症状。本病起病隐袭,早期症状轻微,多在冬季发作,春暖后缓解;后期症状加重并常年存在。病程迁延反复,本病早期症状多轻微,病情进展缓慢,常不引起人们重视,任其发展下去容易成肺气
0 Introduction Chronic bronchitis in the elderly; chronic non-specific inflammation of the tracheobronchial mucosa and its surrounding tissues caused by infectious or non-infectious agents. The pathological features of bronchial mucinous gland hyperplasia, mucus secretion increased. Clinical manifestations of more than 2 consecutive years, lasting more than 3 months each year cough, sputum or asthma and other symptoms. Insidious onset of the disease, mild early symptoms, mostly in the winter seizures, relieve after the warm spring; later symptoms aggravated and perennial existence. Prolonged duration of the disease repeatedly, the early symptoms of this disease and more minor, slow progression of the disease, often do not attract attention, let it go easy to develop lung